chore(eks): update eks compare-log unit test to use sdk v3 (#29845)

### Reason for this change

The AWS SDK V2 is being deprecated. We need to remove all uses of it from the CDK.

### Description of changes

The `compare-log` unit test for the `aws-eks` `compareLogging.ts` was using `CreateClusterRequest` and `LogTypes` from AWS SDK V2. I've updated the code to use the `CreateClusterRequest` and `LogType` from AWS SDK V3. Additionally, with this change, `aws-sdk` is no longer needed as a dependency for `@aws-cdk/custom-resource-handlers`.

### Description of how you validated changes

This change does not impact `compareLogging.ts`. Consequently, we just need to verify that the unit tests in `compare-log.test.ts` are still successful. I have validated that these are still passing.

### Checklist
- [x] My code adheres to the [CONTRIBUTING GUIDE](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md) and [DESIGN GUIDELINES](https://github.com/aws/aws-cdk/blob/main/docs/DESIGN_GUIDELINES.md)

----

*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

packages/@aws-cdk/custom-resource-handlers/package.json

@@ -63,8 +63,7 @@
     "@aws-sdk/client-synthetics": "3.421.0",
     "@aws-sdk/client-ecr": "3.421.0",
     "@aws-sdk/client-s3": "3.421.0",
-    "@aws-sdk/client-cloudwatch": "3.421.0",
-    "aws-sdk": "^2.1596.0"
+    "@aws-sdk/client-cloudwatch": "3.421.0"
   },
   "repository": {
     "url": "https://github.com/aws/aws-cdk.git",

packages/@aws-cdk/custom-resource-handlers/test/aws-eks/compare-log.test.ts

@@ -1,5 +1,5 @@
 /* eslint-disable import/no-extraneous-dependencies */
-import * as aws from 'aws-sdk';
+import { CreateClusterRequest, LogType } from '@aws-sdk/client-eks';
 import { compareLoggingProps } from '../../lib/aws-eks/cluster-resource-handler/compareLogging';
 
 /**
@@ -30,8 +30,8 @@ enum ClusterLoggingTypes {
 
 describe('compareLoggingProps', () => {
 
-  type Props = Partial<aws.EKS.CreateClusterRequest>;
-  const oldEnabledTypes: aws.EKS.LogTypes = [ClusterLoggingTypes.API, ClusterLoggingTypes.AUDIT];
+  type Props = Partial<CreateClusterRequest>;
+  const oldEnabledTypes: LogType[] = [ClusterLoggingTypes.API, ClusterLoggingTypes.AUDIT];
 
   test('when newProps.logging.clusterLogging is undefined, should disable all types with enabled:true in oldProps', () => {
     const oldProps: Props = {